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Finding the Fourth Proportional to 73,198.31, 101,012.82 and 39,664.31

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Solution

The fourth proportional to 73,198.31, 101,012.82 and 39,664.31 is: 54,736.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,198.31 : 101,012.82 = 39,664.31 : x
  2. Step 2: Convert to fraction form
    73,198.31/101,012.82 = 39,664.31/x
  3. Step 3: Cross multiply
    73,198.31x = 101,012.82 × 39,664.31
  4. Step 4: Simplify right side
    73,198.31x = 4,006,603,301.39
  5. Step 5: Solve for x
    x = 4,006,603,301.39/73,198.31
  6. Step 6: Final answer
    x = 54,736.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.